QUIZ

Question 1

command can load and unload a kernel module from memory

Answer 1

modprobe

Question 2

command loads a kernel module into memory

Answer 2

modprobe

Question 3

real file system

Answer 3

XFS

Question 4

pseudo file system

Answer 4

sysfs

Question 5

commonly mounted at /sys and is mounted automatically by the system

Answer 5

sysfs filesystem

Question 6

This command lists the block devices (such as hard disks) on your system.

Answer 6

lsblk

Question 7

command allows you to view the hot-pluggable devices currently connected to your system

Answer 7

lsusb

Question 8

run level reboots system

Answer 8

6

Question 9

Which two commands will show you output from the kernel ring buffer?

Answer 9

journalctl -k

dmesg

Question 10

‘sysvinit’ run level for single user mode

Answer 10

Runlevel 1

Question 11

Which option provides a desktop environment on a Linux workstation?

Answer 11

runlevel 5

Question 12

valid initialization systems for Linux

Answer 12

sysvinit

upstart

Question 13

When is the initial ramdisk no longer needed during the boot process?

Answer 13

Once the init system has taken over mounting the computers’ file systems.

Question 14

commands that completely power down a system

Answer 14

shutdown -P

systemctl poweroff

Question 15

Which command starts a graphical desktop session on a Linux system running sysvinit

Answer 15

telinit 5

Question 16

Which options configure a computer to boot into a shell environment where more than one person can log into the system and have network access?

Answer 16

systemctl set-default multi-user.target

Question 17

edit this file to configure a computer to boot into a shell environment where more than one person can log into the system and have network access?

Answer 17

Edit the /etc/inittab file, and set the first directive to id:3:initdefault

Question 18

Which command posts a message to the terminal window notifying other users on the system that you are about to reboot the computer?

Answer 18

wall “This computer will be rebooted in 5 minutes.”

Question 19

command is used to broadcast a message to all users on a system.

Answer 19

wall

Question 20

commands shut down your computer

Answer 20

shutdown -h -t now

systemctl isolate shutdown.target

Question 21

commands reboot a computer using systemd

Answer 21

systemctl reboot

systemctl isolate reboot.target

Question 22

On a sysvinit system, which command shows you the current runlevel

Answer 22

runlevel

Question 23

On a system using Upstart, you need to perform an emergency operation in an isolated manner (meaning that you need to prevent others from logging in) without rebooting. Which command would you use to achieve this

Answer 23

telinit 1

only root can log in